microstructures and properties of electrical discharge
IEEE TRANSACTIONS ON MAGNETICS, VOL. 39, NO. 1, JANUARY 2003 323 Obtainable Microstructures in Electrical Conductors Made of a CopperSilver Alloy Zachira Castro-Dettmer, Martha Simmons, and Chadee Persad AbstractThe goal of this study was to understand the relation- ships between the obtainable properties of coppersìlver conductor alloys and the materials
Aug 27, 2020 · Electric Discharge Alloying/Coating a thermal process of elemental deposition together with pyrolysis carbon enhance various properties. Nickel and silica both provide excellent property, but the solidification rate differs the material microstructural properties (amorphous) that improves its properties under diverse working conditions. Effects of Heating Mode and Temperature on the materials Article Effects of Heating Mode and Temperature on the Microstructures, Electrical and Optical Properties of Molybdenum Thin Films Haili Zhao 1,2,3, Jingpei Xie 2,4,* , Aixia Mao 1,2,3, Aiqin Wang 2, Yanfang Chen 2, Tingting Liang 2 and Douqin Ma 4 1 School of Physical Engineering, Zhengzhou University, Zhengzhou 450052, China; [email protected] (H.Z.); [email protected]
Oct 12, 2020 · Thereby, volume fractions of these formed three different microstructures determine the resulting mechanical and magnetic properties of the specimens. For all specimens, the intrinsic coercivity Hc,J deteriorates with increasing discharge energy, as the generated Joule heat leads to microstructural changes (grain growth, dissolution of magnetic phases), which reduces the magnetic properties. Fabrication of Microstructures on RB-SiC by Ultrasonic This re- sult demonstrated that the ultrasonic cavitation assisted micro-electrical discharge machining with the addition of carbon nanofibers in the dielectric fluid and a slightly in- Fabrication of Microstructures on RB-SiC by Ultrasonic Cavitation Assisted Micro-Electrical Discharge Machining.
growing popularity of micro-electrical discharge machin-ing can be attributed to its advantages, which include low installation cost and its ability to machine complex three-dimensional shapes easily regardless of the mate-rials hardness . Furthermore, during machining with micro- electrical discharge machining, there is no direct Facile synthesis of Cu 2 O microstructures and their The electrical conductivity was calculated as = 1/ , where is the electrical conductivity (S cm 1). 53 The conductivity of the Cu 2 O microcubes and microspheres were 0.273 × 10 3 and 0.189 × 10 3 S m 1, respectively. Thus, the Cu 2 O microcubes are more conducting as compared to the microspheres.
Facile synthesis of Cu2O microstructures and their morphology dependent electrochemical supercapacitor properties and rapid charge discharge rate, as well as excellent cycle stability.5,6 According to the charge storage mechanism, the supercapacitor is classi ed into two categories:electric Hybrid machining of microstructures using a combination of May 26, 2009 · Using laser beam machining with ultrashort laser pulses, microstructures in the micrometer region can be manufactured in virtually all materials, regardless of their mechanical properties. However, machining times are slow if good surface qualities are required. Micro electrical discharge machining (EDM) is also capable of removing material nearly without process forces, but
Aug 19, 2014 · These microstructures are realized in steel, and are fabricated over the cm-scale using micro electrical discharge machining (mEDM). The liquid repellency of these surfaces is characterized using droplets of either water (surface energy lg = 72.4 mN m 1), RL-68H oil ( lg = 28.6 mN m 1), or Isopropanol (IPA) ( lg = 21.7 mN m 1). The water droplets form nearly perfect spheres, with contact Influence Factors and Microstructures of Machined Surface May 01, 2018 · The microstructures of machined surface of the specimens in electrical discharge machining(EDM) for SiCw/2024 aluminium matrix composites were measured with scanning electron microscope(SEM) and Talysurf-6 roughometer, and the energy spectrums of them were analyzed using EDAX spectrometer. The results show that the microstructures of machined surface
We investigated microstructures, compositional distributions, and electrical properties of dielectric CaCu 3 Ti 4 O 12 (CCTO) thin films deposited on Pt/TiO 2 /SiO 2 /Si substrates from 700 to 800 °C by pulsed laser deposition. With increasing the deposition temperature from 700 to 750 °C, the dielectric constants ( r) of CCTO films were greatly enhanced from 300 to 2000 at 10 kHz Microstructures and mechanical properties of Ti44Al5Nb The effect of Mo and B on the microstructures and mechanical properties of TiAl-based alloys were, respectively, investigated. The following conclusions are drawn:(i) The addition of Mo into Ti44Al5Nb3Cr1.5Zr x Mo0B alloys can increase the fraction of B2 phase but cannot significantly refine the microstructure.
Jan 01, 2020 · The microstructures, component distribution, and mechanical and electrical performance of the Cu-15Ni-8Sn alloy were investigated and compared with those of cast ingots. The strengthening mechanism of SLM-manufactured parts is discussed and analyzed. This work presents a new way to produce easily segregated Cu-15Ni-8Sn alloys, and findings may Microstructuring of non-conductive silicon carbide by Nov 07, 2013 · The electrical discharge machining process is an established process for machining materials regardless of their mechanical properties. Thus this process is especially attractive for materials which are hard to machine with conventional machining methods. The only requirement a material has to fulfil is having a certain electrical conductivity. Ceramic materials, (e.g. zirconia, silicon
This study presents a fabrication route for an electrically conductive ZrO 2-TiN ceramic nanocomposite with a nanoscale TiN phase occupying 30 vol% to improve the mechanical reinforcement of the zirconia matrix, and at the same time provide electrical conductivity to facilitate electro-discharge machining (EDM).The TiN nanoparticles were incorporated into a 3 mol% yttria-stabilized Investigation on the Micro-Structures and Properties of Electrical Discharge Machining (EDM) is the machining technique of discharging corrosion of the material surface. The effect of the EDM pulse current on the micro structure and properties of the P20 specimen surface were investigated. Three layers were observed on the specimen surface after discharging:ablation layer, molten layer and recrystallized layer.